Crimp-Type Coupling, Crimping Tool and Method of Crimping
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United States of America Patent
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Issued Date -
Oct 7, 2010
app pub date -
Mar 30, 2010
filing date -
Apr 2, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A coupling installed by crimping has an angularly oriented conical surface at an open end surrounded by a ring which receives a pipe element. Dies move radially toward the coupling on jaws of a crimping tool and engage the conical surface along a single line of contact to effect a crimp which secures the coupling to the pipe. The radially applied force has radial and axial components. The radial component effects the crimp, the axial component deforms a channel in the coupling in which a seal is located. The seal is deformed between the coupling and the pipe to effect a fluid tight joint. The coupling may have a circumferential rib which projects radially outwardly. Registration dogs engage the coupling and provide a reaction surface against the axial force component.
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